package com.lori.netshop.util;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class HttpClientUtil {
	public static String doGet(String uri){
		CloseableHttpClient client = null;
		CloseableHttpResponse response = null;
		try {
			//创建httpclient对象
			 client = HttpClients.createDefault();
			//创建get对象
			HttpGet get = new HttpGet(uri);
			//获得response
			 response = client.execute(get);
			//获得信息
			HttpEntity entity = response.getEntity();
			String string = EntityUtils.toString(entity, "utf-8");
			return string;
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		} finally{
			try {
				if(client != null){
					client.close();
				}
				if(response != null){
					response.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
	public static String doGet(String uri,Map<String,String> map){
		CloseableHttpClient client = null;
		CloseableHttpResponse response = null;
		String entityResult = "";
		try {
			//创建httpclient对象
			 client = HttpClients.createDefault();
			 //设置参数
			 URIBuilder builder = new URIBuilder(uri);
			 Set<String> keySet = map.keySet();
			 for (Iterator<String> iterator = keySet.iterator(); iterator.hasNext();) {
				String key = iterator.next();
				builder.addParameter(key, map.get(key));
				
			}
			//创建get对象
			HttpGet get = new HttpGet(uri);
			//获得response
			 response = client.execute(get);
			//获得信息
			if(response.getStatusLine().getStatusCode() == 200){
				HttpEntity entity = response.getEntity();
				entityResult = EntityUtils.toString(entity, "utf-8");
			}
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		} finally{
			try {
				client.close();
				response.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		return entityResult;
	}
	public static String doPost(String url, Map<String, String> param) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse response = null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建参数列表
			if (param != null) {
				List<NameValuePair> paramList = new ArrayList<>();
				for (String key : param.keySet()) {
					paramList.add(new BasicNameValuePair(key, param.get(key)));
				}
				// 模拟表单
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
				httpPost.setEntity(entity);
			}
			// 执行http请求
			response = httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

		return resultString;
	}

	public static String doPost(String url) {
		return doPost(url, null);
	}
	
	public static String doPostJson(String url, String json) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse response = null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建请求内容
			StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
			httpPost.setEntity(entity);
			// 执行http请求
			response = httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

		return resultString;
	}
}
